CN213024091U

CN213024091U - Accurate temperature control system of pan head

Info

Publication number: CN213024091U
Application number: CN202022477548.9U
Authority: CN
Inventors: 马远洋; 谢雪禧; 曹伟; 王成; 王诗桂; 梁毅
Original assignee: Yanjing Beer Yulin Co ltd
Current assignee: Yanjing Beer Yulin Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-04-20
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses an accurate temperature control system for a pan head, which relates to the technical field of beer production and mainly solves the technical problem that the prior temperature control mode of the pan head has poor precision, and the utility model comprises a pan head body and a controller; the periphery of the pan head body is sleeved with a snake-shaped jacket, the input end of the snake-shaped jacket is connected with a steam inlet main pipe, a first regulating valve is arranged on the steam inlet main pipe, the steam inlet main pipes at the two ends of the first regulating valve are connected with steam inlet side pipes in parallel, a second regulating valve is arranged on the steam inlet side pipes, the inner diameter of the steam inlet side pipes is smaller than that of the steam inlet main pipes, and a first temperature sensor is arranged on the pan head body; the controller is electrically connected with the first regulating valve, the second regulating valve and the first temperature sensor. When the deviation between the actual temperature and the set temperature is greater than the set deviation, the utility model controls the first regulating valve to work to rapidly heat the pan head body; otherwise, the second regulating valve is controlled to work to ensure that the pan head body is stable in heat preservation and high in temperature control precision.

Description

Accurate temperature control system of pan head

Technical Field

The utility model relates to a beer production technical field, more specifically say, it relates to an accurate temperature control system of pot head.

Background

Currently, in the mashing process for beer production, starch is broken down at a specific temperature by the action of enzymes into sugars required by yeast. The temperature rise and the rest of the pan head (the temperature is controlled to be a certain value and the sugar starch required by the yeast is decomposed under the catalysis of enzyme) are realized by controlling the flow rate of steam through an adjusting valve and then transferring the heat to mash through a serpentine jacket welded on the wall of the pan, thereby achieving the heating effect. The mash is decomposed into sugar required by yeast under the action of enzyme at a specific temperature, the enzyme is inactivated when the temperature is higher, and the saccharification reaction is too slow to reduce the sugar content when the temperature is lower, so that the fermentation efficiency is influenced, the subsequent fermentation process is lack of nutrients, and the flavor index and the taste of the beer are influenced. For example, the optimal temperature for the action of the enzyme is 70 ℃ which leads to enzyme inactivation when the temperature is raised to 70.3 ℃ and too slow a saccharification reaction when the temperature is lowered to 69.7 ℃. The temperature control mode of the existing pan head is single in temperature rising mode, only one regulating valve is used for controlling temperature, the temperature can not be controlled quickly and accurately, the temperature deviation reaches more than 0.5 ℃, and the fermentation efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to the above-mentioned of prior art, the utility model aims at providing a pot head accurate temperature control system that can improve the control by temperature change precision.

The technical scheme of the utility model is that: an accurate pan head temperature control system comprises a pan head body and a controller; the boiler head comprises a boiler head body and is characterized in that a snake-shaped jacket is sleeved on the periphery of the boiler head body, the input end of the snake-shaped jacket is connected with a steam inlet main pipe, a first regulating valve is arranged on the steam inlet main pipe, the steam inlet main pipes at the two ends of the first regulating valve are connected in parallel with steam inlet side pipes, a second regulating valve is arranged on the steam inlet side pipes, the inner diameter of the steam inlet side pipes is smaller than that of the steam inlet main pipes, and a first temperature sensor is arranged on the boiler head body; the controller is electrically connected with the first regulating valve, the second regulating valve and the first temperature sensor.

As a further improvement, the inner diameter of the steam inlet bypass pipe is 1/5-1/4 of the inner diameter of the steam inlet main pipe.

Further, the controller is a PLC controller.

Furthermore, the middle part of the snake-shaped jacket is provided with at least one middle pipe connected with the steam inlet main pipe.

Furthermore, a second temperature sensor and a third temperature sensor which are electrically connected with the controller are arranged on the pan head body on one side of the first temperature sensor.

Advantageous effects

Compared with the prior art, the utility model, the advantage that has does: the utility model can acquire the actual temperature in the pan head body in real time through the first temperature sensor; if the deviation between the actual temperature and the set temperature is larger than the set deviation, the controller controls the first regulating valve to work, the steam quantity regulated by the first regulating valve is large, the temperature of the pan head body can be quickly raised, the low-temperature time of the enzyme action is shortened, and therefore the influence of low sugar content caused by too slow saccharification reaction is relieved; otherwise, the controller controls the second regulating valve to work, the steam quantity regulated by the second regulating valve is small, fine control can be realized, the control precision of the temperature reaches within 0.2 ℃, the temperature can be accurately controlled, the heat preservation of the pan head body is stable, the temperature in the pan head body is always kept at the optimal temperature of the enzyme action, the fermentation efficiency is ensured, and the beer quality is ensured.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: 1-boiler head body, 2-snake-shaped jacket, 3-steam inlet main pipe, 4-first regulating valve, 5-steam inlet bypass pipe, 6-second regulating valve, 7-first temperature sensor, 8-intermediate pipe, 9-second temperature sensor and 10-third temperature sensor.

Detailed Description

The invention will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1, an accurate temperature control system for a pan head includes a pan head body 1 and a controller. The periphery cover of pan head body 1 is equipped with snakelike clamp cover 2, and the input that snakelike clamp cover 2 is connected with into vapour and is responsible for 3, and the admission is responsible for and is equipped with first governing valve 4 on 3. The steam inlet main pipe 3 at the two ends of the first regulating valve 4 is connected with a steam inlet side pipe 5 in parallel, a second regulating valve 6 is arranged on the steam inlet side pipe 5, and the inner diameter of the steam inlet side pipe 5 is smaller than that of the steam inlet main pipe 3. The pan head body 1 is provided with a first temperature sensor 7. The controller is electrically connected with the first regulating valve 4, the second regulating valve 6 and the first temperature sensor 7.

Preferably, the inner diameter of the steam inlet bypass pipe 5 is 1/5-1/4 of the inner diameter of the steam inlet main pipe 3, so that the steam quantity can be finely controlled, and the steam supply quantity can be met. The controller is a PLC controller, such as a PLC controller of model S7-200.

The middle part of the snakelike jacket 2 is provided with at least one middle pipe 8 connected with the steam inlet main pipe 3, so that the uniformity of the heating pan head body 1 can be improved, and the overall temperature rise of the pan head body 1 is more uniform. If the number of the middle pipes 8 is multiple, the middle pipes 8 are evenly arranged at intervals.

The pot head body 1 on one side of the first temperature sensor 7 is provided with a second temperature sensor 9 and a third temperature sensor 10 which are electrically connected with the controller, and the second temperature sensor 9 and the third temperature sensor 10 are used for calibrating and detecting the effectiveness of the first temperature sensor 7. The temperatures detected by the first temperature sensor 7, the second temperature sensor 9 and the third temperature sensor 10 are compared, and when the temperature detected by one of the temperature sensors is too different from the temperatures detected by the other two temperature sensors, the temperature sensor with the too large temperature difference can be judged to be in fault. When the first temperature sensor 7 fails, it is possible to switch to the second temperature sensor 9 or the third temperature sensor 10 to ensure the accuracy and stability of the temperature control.

The utility model discloses a following control mode can be realized at least to the system:

the controller acquires the actual temperature in the pan head body 1 in real time through the first temperature sensor 7; if the deviation between the actual temperature and the set temperature is larger than the set deviation, the controller controls the first regulating valve 4 to work so as to rapidly heat the pan head body 1; otherwise, the controller controls the second regulating valve 6 to work so that the pan head body 1 is stable in heat preservation.

The temperature is set to be the optimum temperature for the action of the enzyme, and the deviation is set to be 0.5-1 ℃. The controller controls the first regulating valve 4 or the second regulating valve 6 to work through PID, and control precision and stability can be improved.

The utility model can acquire the actual temperature in the pan head body in real time through the first temperature sensor; if the deviation between the actual temperature and the set temperature is larger than the set deviation, the controller controls the first regulating valve to work, the steam quantity regulated by the first regulating valve is large, the temperature of the pan head body can be quickly raised, the low-temperature time of the enzyme action is shortened, and therefore the influence of low sugar content caused by too slow saccharification reaction is relieved; otherwise, the controller controls the second regulating valve to work, the steam quantity regulated by the second regulating valve is small, fine control can be realized, the control precision of the temperature reaches within 0.2 ℃, the temperature can be accurately controlled, the heat preservation of the pan head body is stable, the temperature in the pan head body is always kept at the optimal temperature of the enzyme action, the fermentation efficiency is ensured, and the beer quality is ensured.

The above is only a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility of the invention and the utility of the patent.

Claims

1. An accurate pan head temperature control system comprises a pan head body (1) and is characterized by further comprising a controller; the boiler head comprises a boiler head body (1), wherein a snake-shaped jacket (2) is sleeved on the periphery of the boiler head body (1), the input end of the snake-shaped jacket (2) is connected with a steam inlet main pipe (3), a first adjusting valve (4) is arranged on the steam inlet main pipe (3), the steam inlet main pipes (3) at the two ends of the first adjusting valve (4) are connected in parallel with steam inlet side pipes (5), a second adjusting valve (6) is arranged on the steam inlet side pipes (5), the inner diameter of each steam inlet side pipe (5) is smaller than that of the steam inlet main pipe (3), and a first temperature sensor (7) is arranged on the boiler head body (1); the controller is electrically connected with the first regulating valve (4), the second regulating valve (6) and the first temperature sensor (7).

2. The accurate temperature control system of pan head as claimed in claim 1, characterized in that the inner diameter of the steam inlet bypass pipe (5) is 1/5-1/4 of the inner diameter of the steam inlet main pipe (3).

3. The accurate pan head temperature control system of claim 1, wherein the controller is a PLC controller.

4. The accurate pan head temperature control system according to any one of claims 1-3, wherein the middle part of the serpentine jacket (2) is provided with at least one middle pipe (8) connected with the main steam inlet pipe (3).

5. The accurate temperature control system of a pan head according to any one of claims 1-3, characterized in that the pan head body (1) on one side of the first temperature sensor (7) is provided with a second temperature sensor (9) and a third temperature sensor (10) which are electrically connected with the controller.